Thymine vs Uracil
Cov nucleic acids muaj cov chains ntawm nucleotides. Txhua nucleotide suav nrog nitrogenous puag, pentose qab zib thiab phosphate pawg. Nitrogenous bases ua cov pob txha ntawm nucleic acids. Nitrogenous bases feem ntau muab faib ua ob hom; (a) pyrimidines, uas suav nrog cytosine, uracil thiab thymine, thiab (b) purines, uas suav nrog adenine thiab guanine. Cov hauv paus no qhia txog kev sib koom ua ke; adenine ib txwm ua khub nrog thymine (hauv DNA) lossis uracil (hauv RNA) thaum guanine khub nrog cytosine. Muaj hydrogen bonds ntawm txhua lub hauv paus khub uas pab tuav lub hauv paus ua ke.
Thymine
Thymine yog ib qho ntawm plaub lub hauv paus nitrogenous uas xav tau los ua cov pob txha ntawm DNA molecule. Nws yeej ib txwm ua ke nrog adenine los ntawm ob daim ntawv cog lus hydrogen. Thymine yog ib qho pyrimidine uas pom tsuas yog hauv DNA molecules thiab yog synthesized los ntawm uracil.
Uracil
Uracil yog pyrimidine hom nitrogenous puag uas pom tsuas yog hauv RNA molecules. Nws ib txwm ua ke nrog adenine. Cov tshuaj sib txawv ntawm uracil thiab thymine yog qhov tsawg heev. Uracil muaj hydrogen atom ntawm C-5 carbon thaum thymine muaj ib pawg methyl ntawm tib carbon.
Qhov txawv ntawm Thymine thiab Uracil yog dab tsi?
• DNA molecules muaj thymine, whereas RNA muaj uracil.
• Thymine muaj ib pawg methyl (CH3) ntawm tus lej-5 carbon, whereas uracil muaj hydrogen (H) molecule ntawm tus lej-5 carbon.
• Hauv tag nrho cov kab mob lom, thymine yog tsim los ntawm uracil.
• Ribonucleoside ntawm thymine yog thymidine, whereas ntawm uracil yog uradine.
• Deoxyribonucleoside ntawm thymine yog deoxythymidine, whereas ntawm uracil yog deoxyuridine.
